Answer:
A solid's particles are packed closely together. The forces between the particles are strong enough that the particles cannot move freely; they can only vibrate. As a result, a solid has a stable, definite shape and a definite volume. Solids can only change shape under force, as when broken or cut.
1s^2 2s^2 2p^6 for the Mg2+ ion.
Less friction to stop the wheel from turning
A. Combustion since it can’t be nuclear….?
